MONTREAL — RCMP counter-terrorism detectives are investigating 11 people suspected of participating in three bombings in Quebec since 2004, including a violent 2010 attack on a Canadian Forces recruiting centre, QMI Agency has learned.

The 11 names are redacted or blacked out in four RCMP search warrants which a Quebec Court judge partly unsealed this week at the request of QMI lawyers.

The court documents reveal the Mounties conducted secret court-authorized searches at homes of several suspects and at a community college student association office amid allegations several group members were involved in acquiring explosives.

The RCMP also carried out extensive phone wiretapping as part of the investigation called project C-Sound, the documents show.

The RCMP seized a police body armour vest from one bombing suspect in a February 2013 raid. It is unclear how the suspect had it in his possession.

Investigators noted another suspect had a poster in his home highlighting the 1970 October Crisis and government decision to impose the War Measures Act in Quebec.